Starting OpenBSD Secure Shell server... Starting Permit User Sessions... [ OK ] Started Permit User Sessions. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty6. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.0.197' (ECDSA) to the list of known hosts. executing program [* ] A start job is running for dev-ttyS0.device (8s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (8s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (9s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (10s / 1min 30s)[ 17.455896][ T22] audit: type=1400 audit(1629082356.786:8): avc: denied { execmem } for pid=338 comm="syz-executor766" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 17.484849][ T341] FAT-fs (loop0): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) [ 17.497685][ T341] incfs: Can't find or create .index dir in ./file0 [ 17.506534][ T344] BUG: Dentry ffff8881ecbc7220{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 17.516434][ T344] ------------[ cut here ]------------ [ 17.522101][ T344] WARNING: CPU: 1 PID: 344 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 17.530411][ T344] Modules linked in: [ 17.534313][ T344] CPU: 1 PID: 344 Comm: syz-executor766 Not tainted 5.4.125-syzkaller-00008-ga8f2bcabf9c5 #0 [ 17.544521][ T344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 17.554764][ T344] RIP: 0010:umount_check+0x179/0x1c0 [ 17.560192][ T344] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 0b e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 37 a2 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff [ 17.579769][ T344] RSP: 0018:ffff8881dafbf738 EFLAGS: 00010282 [ 17.585820][ T344] RAX: 0000000000000055 RBX: ffffffff85fc6160 RCX: ef497dcce1bf9000 [ 17.593762][ T344] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 17.601716][ T344] RBP: ffff8881f34f6420 R08: ffffffff814e90d7 R09: ffffed103ede9608 [ 17.609658][ T344] R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000 [ 17.617687][ T344] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbc7220 [ 17.625716][ T344] FS: 00007f49c6d68700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 17.634614][ T344] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.641165][ T344] CR2: 00000000004d15c0 CR3: 0000000005e0e000 CR4: 00000000001406e0 [ 17.649377][ T344] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 17.657407][ T344] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 17.665442][ T344] Call Trace: [ 17.668710][ T344] d_walk+0x2d9/0x540 [ 17.673179][ T344] ? __d_free+0x20/0x20 [ 17.677479][ T344] shrink_dcache_for_umount+0x8a/0x1a0 [ 17.682991][ T344] generic_shutdown_super+0x63/0x2a0 [ 17.688254][ T344] kill_block_super+0x79/0xd0 [ 17.692923][ T344] deactivate_locked_super+0xaf/0x100 [ 17.698277][ T344] deactivate_super+0x1b3/0x270 [ 17.703187][ T344] ? deactivate_locked_super+0x100/0x100 [ 17.708859][ T344] ? dput+0x4de/0x5d0 [ 17.712811][ T344] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 17.717975][ T344] ? find_next_bit+0xc6/0x110 [ 17.722630][ T344] cleanup_mnt+0x432/0x4e0 [ 17.727037][ T344] task_work_run+0x186/0x1b0 [ 17.731682][ T344] do_exit+0xcb9/0x2bf0 [ 17.735819][ T344] ? mm_update_next_owner+0x5c0/0x5c0 [ 17.741168][ T344] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 17.746260][ T344] ? _raw_spin_lock_irqsave+0x210/0x210 [ 17.752019][ T344] do_group_exit+0x15c/0x2c0 [ 17.756667][ T344] get_signal+0x164f/0x1fc0 [ 17.761322][ T344] ? ptrace_notify+0x340/0x340 [ 17.766177][ T344] do_signal+0x8d/0x610 [ 17.770306][ T344] ? signal_fault+0x1e0/0x1e0 [ 17.774952][ T344] ? __x64_sys_futex+0x1d/0xf0 [ 17.779682][ T344] prepare_exit_to_usermode+0x207/0x310 [ 17.785218][ T344] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 17.791085][ T344] RIP: 0033:0x449f29 [ 17.795046][ T344] Code: Bad RIP value. [ 17.799096][ T344] RSP: 002b:00007f49c6d68308 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 17.807483][ T344] RAX: fffffffffffffe00 RBX: 00000000004cb418 RCX: 0000000000449f29 [ 17.815424][ T344] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000004cb418 [ 17.823370][ T344] RBP: 00000000004cb410 R08: 0000000000000000 R09: 0000000000000000 [ 17.831313][ T344] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb41c [ 17.839326][ T344] R13: 0030656c69662f2e R14: 6e656d6572636e69 R15: 0000000000022000 [ 17.847673][ T344] ---[ end trace d8bed598702355c6 ]--- [ 17.853801][ T344] BUG: Dentry ffff8881ecbc7220{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ *[0;1[ 17.863950][ T344] ------------[ cut here ]------------ [ 17.870808][ T344] WARNING: CPU: 1 PID: 344 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 17.879199][ T344] Modules linked in: [ 17.883172][ T344] CPU: 1 PID: 344 Comm: syz-executor766 Tainted: G W 5.4.125-syzkaller-00008-ga8f2bcabf9c5 #0 [ 17.894684][ T344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 17.904738][ T344] RIP: 0010:umount_check+0x179/0x1c0 [ 17.910050][ T344] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 0b e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 37 a2 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff [ 17.929634][ T344] RSP: 0018:ffff8881dafbf738 EFLAGS: 00010282 [ 17.935676][ T344] RAX: 0000000000000055 RBX: ffffffff85fc6160 RCX: ef497dcce1bf9000 [ 17.943632][ T344] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 [ 17.951679][ T344] RBP: ffff8881f34f6420 R08: ffffffff814e90d7 R09: ffffed103ede9608 [ 17.959627][ T344] R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000 [ 17.967672][ T344] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbc7220 [ 17.975616][ T344] FS: 00007f49c6d68700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 17.985555][ T344] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.992108][ T344] CR2: 0000000000449eff CR3: 00000001ee1a9000 CR4: 00000000001406e0 [ 18.000053][ T344] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.008006][ T344] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.015953][ T344] Call Trace: [ 18.019307][ T344] d_walk+0x2d9/0x540 [ 18.023276][ T344] ? __d_free+0x20/0x20 [ 18.027512][ T344] shrink_dcache_for_umount+0x8a/0x1a0 [ 18.033039][ T344] generic_shutdown_super+0x63/0x2a0 [ 18.038324][ T344] kill_block_super+0x79/0xd0 [ 18.042982][ T344] deactivate_locked_super+0xaf/0x100 [ 18.048423][ T344] deactivate_super+0x1b3/0x270 [ 18.053246][ T344] ? deactivate_locked_super+0x100/0x100 [ 18.058852][ T344] ? dput+0x4de/0x5d0 [ 18.062922][ T344] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 18.068206][ T344] ? find_next_bit+0xc6/0x110 [ 18.072866][ T344] cleanup_mnt+0x432/0x4e0 [ 18.077453][ T344] task_work_run+0x186/0x1b0 [ 18.082045][ T344] do_exit+0xcb9/0x2bf0 [ 18.086396][ T344] ? mm_update_next_owner+0x5c0/0x5c0 [ 18.091749][ T344] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 18.096866][ T344] ? _raw_spin_lock_irqsave+0x210/0x210 [ 18.102726][ T344] do_group_exit+0x15c/0x2c0 [ 18.109369][ T344] get_signal+0x164f/0x1fc0 [ 18.113857][ T344] ? ptrace_notify+0x340/0x340 [ 18.118622][ T344] do_signal+0x8d/0x610 [ 18.122795][ T344] ? signal_fault+0x1e0/0x1e0 [ 18.127670][ T344] ? __x64_sys_futex+0x1d/0xf0 [ 18.132429][ T344] prepare_exit_to_usermode+0x207/0x310 [ 18.137960][ T344] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.143835][ T344] RIP: 0033:0x449f29 [ 18.147704][ T344] Code: Bad RIP value. [ 18.151747][ T344] RSP: 002b:00007f49c6d68308 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 18.160132][ T344] RAX: fffffffffffffe00 RBX: 00000000004cb418 RCX: 0000000000449f29 [ 18.168090][ T344] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000004cb418 [ 18.176434][ T344] RBP: 00000000004cb410 R08: 0000000000000000 R09: 0000000000000000 [ 18.184668][ T344] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb41c [ 18.192933][ T344] R13: 0030656c69662f2e R14: 6e656d6572636e69 R15: 0000000000022000 [ 18.201184][ T344] ---[ end trace d8bed598702355c7 ]--- ;31m*[ 18.207711][ T344] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... * ] A start job is running for dev-ttyS0.device (10s / 1min 30s)